<template>
  <view class="cart-container" v-if="cart.length!==0">
    <!-- 收货地址组件 -->
    <my-address></my-address>
    <!-- 商品列表的标题区域 -->
    <view class="cart-title">
      <!-- 左侧的图标 -->
      <uni-icons type="shop" size="18"></uni-icons>
      <!-- 右侧的文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
    <!-- 循环渲染购物车中的商品信息 -->
   <uni-swipe-action>
     <block v-for="(goods,i) in cart" :key="i">
      <uni-swipe-action-item :right-options="options" @click="swipeItemClickHandler(goods)">
         <my-goods :goods="goods" :show-radio="true" :show-num="true"  @radio-change="radioChangeHandler" @num-change="numberChangeHandler"></my-goods>
      </uni-swipe-action-item>
     </block>
   </uni-swipe-action>
   
   <!-- 使用自定义的结算组件 -->
   <my-settle></my-settle>
  </view>
  
  <!-- 空白购物车的区域 -->
  <view class="empty-cart" v-else>
    <image src="/static/cart_empty@2x.png" class="empty-img"></image>
    <text class="tip-text">空空如也~</text>
  </view>
</template>

<script>
  import badgeMix from '@/mixins/tabbar-badge.js'
  import {mapState,mapMutations} from 'vuex'
  export default {
    mixins:[badgeMix],
    computed:{
      ...mapState('m_cart',['cart'])
    },
    data() {
      return {
          options:[{
            text:'删除',
            style:{
              backgroundColor:'#c00000'
            }
          }]
      };
    },
   methods:{                          
     ...mapMutations('m_cart',['updateGoodsState','updateGoodsCount','removeGoodsById']),
     radioChangeHandler(e){
       // console.log(e)
       this.updateGoodsState(e)
     },
     numberChangeHandler(e){
       // console.log(e)
       this.updateGoodsCount(e)
     },
     swipeItemClickHandler(goods){
       // console.log(goods)
       this.removeGoodsById(goods.goods_id)
     }
   }
  }
</script>

<style lang="scss">
  .cart-container{
    padding-bottom:50px;
  }
  .cart-title{
    height:40px;
    display:flex;
    align-items: center;
    padding-left:5px;
    border-bottom: 1px solid #efefef;
    .cart-title-text{
      font-size: 14px;
      margin-left:10px;
    }
  }
  .empty-cart{
    display:flex;
    flex-direction: column;
    align-items: center;
    padding-top:150px;
    .empty-img{
      width:90px;
      height:90px;
    }
    .tip-text{
      font-size: 12px;
      color:gray;
      margin-top: 15px;
    }
  }
</style>
